A.X-Y鍵 B.P-B鍵 C.混合鍵 D.中間值鍵
A.以順動的為準 B.以逆動的為準 C.以占優(yōu)勢的光帶為準 D.以不占優(yōu)勢的光帶為準
A.9~10mm B.10~11mm C.11~12mm D.12~13mm